package com.mimi.controller;

import com.mimi.config.ProjectUrlConfig;
import com.mimi.enums.ResultEnum;
import com.mimi.exception.SellException;
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.api.impl.WxMpServiceImpl;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.net.URLEncoder;

/**
 * @Author:徐向
 * @Description:微信网页授权,使用第三方SDK实现.获取openid和授权登录
 * @Date: Created in 15:36 2017/10/12
 */
@Controller
@RequestMapping("/wechat")
@Slf4j
public class WechatController {
    @Autowired
    private WxMpService wxMpService;

    @Autowired
    private WxMpService wxOpenService;

    @Autowired
    private ProjectUrlConfig projectUrlConfig;

    @GetMapping("/authorize")
    public String authorize(@RequestParam("returnUrl") String returnUrl) {

        //1.配置在WechatMpConfig中实现了.

        //2.调阅方法
        String url = projectUrlConfig.getWechatMpAuthorize()+"/wechat/userInfo";
        String redirectUrl = wxMpService.oauth2buildAuthorizationUrl(url, WxConsts.OAUTH2_SCOPE_BASE, URLEncoder.encode(returnUrl));
        log.info("微信网页授权,获取code,result={}", redirectUrl);
        return "redirect:" + redirectUrl;
    }

    @GetMapping("/userInfo")
    public String userInfo(@RequestParam("code") String code
            , @RequestParam("state") String returnUrl) {
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken();

        try {
            log.info("code:{}  returnUrl:{}", code, returnUrl);
            wxMpOAuth2AccessToken = wxMpService.oauth2getAccessToken(code);
        } catch (WxErrorException e) {
            log.error("微信网页授权{}", e);
            throw new SellException(ResultEnum.WX_MP_ERROR.getCode(), e.getError().getErrorMsg());

        }
        String openId = wxMpOAuth2AccessToken.getOpenId();
        String url = returnUrl + "?openid=" + openId;
        log.info("url:{}", url);

        return "redirect:" + url;
    }

    @GetMapping("/qrAuthorize")
    public String qrAuthorize(@RequestParam("returnUrl") String returnUrl) {
//1.配置在WechatMpConfig中实现了.

        //2.调阅方法
        String url = projectUrlConfig.getWechatMpAuthorize()+"/wechat/qrUserInfo";
        String redirectUrl = wxOpenService.buildQrConnectUrl(url, WxConsts.QRCONNECT_SCOPE_SNSAPI_LOGIN, URLEncoder.encode(returnUrl));
        log.info("微信扫码授权,获取code,result={}", redirectUrl);
        return "redirect:" + redirectUrl;
    }

    @GetMapping("qrUserInfo")
    public String qrUserInfo(@RequestParam("code") String code
            , @RequestParam("state") String returnUrl) {
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken();

        try {
            log.info("code:{}  returnUrl:{}", code, returnUrl);
            wxMpOAuth2AccessToken = wxOpenService.oauth2getAccessToken(code);
        } catch (WxErrorException e) {
            log.error("微信扫码授权{}", e);
            throw new SellException(ResultEnum.WX_MP_ERROR.getCode(), e.getError().getErrorMsg());

        }
        log.info("wxMpOAuth2AccessToken=={}", wxMpOAuth2AccessToken);
        String openId = wxMpOAuth2AccessToken.getOpenId();
        String url = returnUrl + "?openid=" + openId;

        return "redirect:" + url;
    }
}
